Base | Representation |
---|---|
bin | 1101101111110110101000… |
… | …10001010010100101010101 |
3 | 10222001002220002011221110222 |
4 | 12313323110101102211111 |
5 | 12430303144012202410 |
6 | 144144102301124125 |
7 | 6240104525500142 |
oct | 667732421224525 |
9 | 128032802157428 |
10 | 30231541131605 |
11 | 96a614091a270 |
12 | 34830a9b59645 |
13 | 13b3a8c1b73b8 |
14 | 7673004453c9 |
15 | 3765d22e8955 |
hex | 1b7ed4452955 |
30231541131605 has 64 divisors (see below), whose sum is σ = 40337299537920. Its totient is φ = 21566392320000.
The previous prime is 30231541131581. The next prime is 30231541131661. The reversal of 30231541131605 is 50613114513203.
It is not a de Polignac number, because 30231541131605 - 232 = 30227246164309 is a prime.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4499407436 + ... + 4499414154.
It is an arithmetic number, because the mean of its divisors is an integer number (630270305280).
Almost surely, 230231541131605 is an apocalyptic number.
It is an amenable number.
30231541131605 is a deficient number, since it is larger than the sum of its proper divisors (10105758406315).
30231541131605 is a wasteful number, since it uses less digits than its factorization.
30231541131605 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11810.
The product of its (nonzero) digits is 32400, while the sum is 35.
Adding to 30231541131605 its reverse (50613114513203), we get a palindrome (80844655644808).
The spelling of 30231541131605 in words is "thirty trillion, two hundred thirty-one billion, five hundred forty-one million, one hundred thirty-one thousand, six hundred five".
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